Equipment and Calibration History

History for Sensorex DO6400/T DO-07

Rec No.DateLoc FromTitleLoc ToNotes
1196 2014-01-28 Lab none Disposed Lab none This probe is no longer working - probably due to corrosion.
1172 2014-01-10 Mayberry DO Sensor B Removed Lab none The probe was reading high and seemed corroded so it was removed to be serviced in the lab.
956 2013-03-14 Lab none Installed Mayberry DO Sensor B Reinstalled lower DO probe at the Tule tower
944 2013-03-12 Lab none Calibration Lab none DO-07 was calibrated in the lab: M = 8.73/36.8 (mg/L)/mV (aka ppm/mV) @ temp = 21.5 C and press.= 101.5 Kpa
942 2013-03-12 Lab none Maintenance Lab none Replaced membrane. Previous one appeared to be torn. readings seem much better now.
943 2013-02-28 Lab none Removed Lab none Removed for testing in lab since when holding it out of water at Mayberry the readings were decreasing instead of going back to atmospheric.
940 2013-02-28 Mayberry DO Sensor B Removed Lab none Removed for testing in lab since when holding it out of water at Mayberry the readings were decreasing instead of going back to atmospheric.
804 2012-09-13 Lab none Installed Mayberry DO Sensor B DO-07 was installed in the deep open water position at Mayberry. It is about 45cm below the surface.